Research .. My research interest lie in the area of information assurance and security. Some of the areas I am working on and/or plan to work on in near future include the following : Advanced Role Based Access Control Security Models for Emerging Applications/Distributed Systems Security Secure Interoperability in Multidomain environments Security and Privacy of Multimedia Systems Security of XML documents and Semantic Web Authentication and Authorization in Mobile-Commerce Environment Security in Grid and Service Oriented Architectures Privacy and Digital Rights Management Information and Network Survivability Trust Management Security and Trust in IPv6/mobile IPv6 networks and New Internet Architectures